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https://issues.apache.org/jira/browse/DISPATCH-2003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17302895#comment-17302895
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ASF subversion and git services commented on DISPATCH-2003:
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Commit 380a53c0084a6164912290ec9fb5c675cbf28e52 in qpid-dispatch's branch
refs/heads/master from Charles E. Rolke
[ https://gitbox.apache.org/repos/asf?p=qpid-dispatch.git;h=380a53c ]
DISPATCH-2003: Memory usage as uint32 underreports larger sizes
> Qdstat memory usage does not inclue proton memory usage
> -------------------------------------------------------
>
> Key: DISPATCH-2003
> URL: https://issues.apache.org/jira/browse/DISPATCH-2003
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Management Agent
> Affects Versions: 1.15.0
> Reporter: Charles E. Rolke
> Priority: Major
>
> See DISPATCH-2002. An iperf3 session across a two-router network (including
> the patch from DISPATCH-2001) drives the ingress router memory usage to 4Gb
> RES. Qdstat does not show this memory.
> A _qdstat -m_ shows
> {code:java}
> Memory Summary
> VmSize Pooled
> ===================
> 607 MiB 5.57 MiB
> {code}
> The router-internal memory pool numbers support the 5.57 MiB memory
> consumption.
> From the process side, however, memory usage is much greater:
> {code:java}
> chug@unused iperf-unused> top -Hbn1 -p 2594366
> top - 17:49:26 up 19 days, 57 min, 1 user, load average: 0.37, 0.48, 0.43
> Threads: 6 total, 0 running, 6 sleeping, 0 stopped, 0 zombie
> %Cpu(s): 6.6 us, 1.7 sy, 0.0 ni, 91.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0
> st
> MiB Mem : 31551.5 total, 2999.0 free, 15963.2 used, 12589.2 buff/cache
> MiB Swap: 32768.0 total, 32580.0 free, 188.0 used. 14767.3 avail Mem
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 2594366 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:12.70
> qdrouterd
> 2594367 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:11.74
> qdrouterd
> 2594368 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:05.70
> qdrouterd
> 2594369 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:10.66
> qdrouterd
> 2594370 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:15.40
> qdrouterd
> 2594371 chug 20 0 4815548 4.0g 12784 S 0.0 13.1 0:31.81
> qdrouterd
> {code}
> The huge 4.0g RES usage is (probably) an outgoing session buffer in proton
> that supports an interrouter link for which Q2 flow control is not in effect.
> PROTON-2144 delivers instrumented proton memory usage. Stats available from
> that effort should be available in qpid-dispatch debug builds.
>
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